386804540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{244813}}^1$

素因数の和:244901

約数の個数: 24

約数和(自身を含む): 822575040

約数和(自身を除く): 435770500

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 244813, 489626, 979252, 1224065, 2448130, 4896260, 19340227, 38680454, 77360908, 96701135, 193402270, 386804540]

約数ペア:

[(1, 386804540), (2, 193402270), (4, 96701135), (5, 77360908), (10, 38680454), (20, 19340227), (79, 4896260), (158, 2448130), (316, 1224065), (395, 979252), (790, 489626), (1580, 244813)]